Getting Started with Redux Toolkit

Redux Toolkit is the official, recommended way to write Redux logic. It provides a set of tools and best practices to help manage state in applications, especially those built with React.

To get started with Redux Toolkit, you need to install it along with React-Redux:

npm install @reduxjs/toolkit react-redux

• **Slices**: A slice represents a portion of the Redux state and the reducers and actions related to it.
• **Store**: The store holds the complete state tree of your application.
• **Actions**: Actions are payloads of information that send data from your application to your Redux store.
• **Reducers**: Reducers specify how the application's state changes in response to actions.

To create a slice, use the `createSlice` function from Redux Toolkit:

import { createSlice } from '@reduxjs/toolkit';

const counterSlice = createSlice({
    name: 'counter',
    initialState: 0,
    reducers: {
        increment: state => state + 1,
        decrement: state => state - 1,
        incrementByAmount: (state, action) => state + action.payload,
    },
});

export const { increment, decrement, incrementByAmount } = counterSlice.actions;
export default counterSlice.reducer;
            

To setup the store, you can use the `configureStore` function:

import { configureStore } from '@reduxjs/toolkit';
import counterReducer from './features/counterSlice';

const store = configureStore({
    reducer: {
        counter: counterReducer,
    },
});
            

Now, wrap your application in the `` component to access the store:

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import store from './app/store';
import App from './App';

ReactDOM.render(
    
        
    ,
    document.getElementById('root')
);
            

• Keep the store minimal: Only store what is needed.
• Use slices for logical separation of state.
• Utilize `createAsyncThunk` for handling asynchronous logic.
• Write unit tests for reducers and selectors.